From a23f413dfb0319cdac7baa2112738796da9e02c5 Mon Sep 17 00:00:00 2001
From: Santurysim <santurysim@gmail.com>
Date: Wed, 31 Mar 2021 15:51:13 +0300
Subject: [PATCH] Cleanup: convert function definitions to ANSI style in
 minix/commands

Task from minix wishlist.

No functional changes intended.
---
 minix/commands/dhrystone/dhrystone.c     |  54 +++-----
 minix/commands/dosread/dosread.c         |  86 ++++---------
 minix/commands/fsck.mfs/fsck.c           | 149 +++++++----------------
 minix/commands/ifdef/ifdef.c             |  68 ++---------
 minix/commands/isoread/isoread.c         |  67 ++++------
 minix/commands/mail/mail.c               |  48 +++-----
 minix/commands/mount/mount.c             |  10 +-
 minix/commands/playwave/playwave.c       |   2 +-
 minix/commands/prep/prep.c               |  10 +-
 minix/commands/printroot/printroot.c     |   8 +-
 minix/commands/profile/profile.c         |   8 +-
 minix/commands/progressbar/progressbar.c |   4 +-
 minix/commands/recwave/recwave.c         |   4 +-
 minix/commands/svrctl/svrctl.c           |   2 +-
 minix/commands/swifi/db_access.c         |  10 +-
 minix/commands/swifi/db_disasm.c         |   6 +-
 minix/commands/swifi/extra.c             |   5 +-
 minix/commands/synctree/synctree.c       |  32 ++---
 minix/commands/term/term.c               |  21 +---
 minix/commands/termcap/termcap.c         |   8 +-
 minix/commands/umount/umount.c           |   9 +-
 minix/commands/update/update.c           |   2 +-
 minix/commands/vol/vol.c                 |  22 +---
 minix/commands/zmodem/rbsb.c             |  11 +-
 minix/commands/zmodem/rz.c               |  23 ++--
 minix/commands/zmodem/sz.c               |  20 +--
 26 files changed, 218 insertions(+), 471 deletions(-)

diff --git a/minix/commands/dhrystone/dhrystone.c b/minix/commands/dhrystone/dhrystone.c
index 857d1ddc8..de3bf9e4e 100644
--- a/minix/commands/dhrystone/dhrystone.c
+++ b/minix/commands/dhrystone/dhrystone.c
@@ -211,7 +211,7 @@ boolean Func3(Enumeration EnumParIn);
 Enumeration Func1(int CharPar1, int CharPar2);
 
 
-int main()
+int main(void)
 {
   Proc0();
   return(0);
@@ -224,14 +224,13 @@ volatile int done;
 int done;
 #endif
 
-void prep_timer()
+void prep_timer(void)
 {
   signal(SIGALRM, timeout);
   done = 0;
 }
 
-void timeout(sig)
-int sig;
+void timeout(int sig)
 {
   done = 1;
 }
@@ -247,7 +246,7 @@ RecordPtr PtrGlb;
 RecordPtr PtrGlbNext;
 
 
-void Proc0()
+void Proc0(void)
 {
   OneToFifty IntLoc1;
   REG OneToFifty IntLoc2;
@@ -383,8 +382,7 @@ void Proc0()
 }
 
 
-void Proc1(PtrParIn)
-REG RecordPtr PtrParIn;
+void Proc1(REG RecordPtr PtrParIn)
 {
 #define	NextRecord	(*(PtrParIn->PtrComp))
 
@@ -407,8 +405,7 @@ REG RecordPtr PtrParIn;
 }
 
 
-void Proc2(IntParIO)
-OneToFifty *IntParIO;
+void Proc2(OneToFifty *IntParIO)
 {
   REG OneToFifty IntLoc;
   REG Enumeration EnumLoc;
@@ -426,8 +423,7 @@ OneToFifty *IntParIO;
 }
 
 
-void Proc3(PtrParOut)
-RecordPtr *PtrParOut;
+void Proc3(RecordPtr *PtrParOut)
 {
   if (PtrGlb != NULL)
 	*PtrParOut = PtrGlb->PtrComp;
@@ -437,7 +433,7 @@ RecordPtr *PtrParOut;
 }
 
 
-void Proc4()
+void Proc4(void)
 {
   REG boolean BoolLoc;
 
@@ -448,16 +444,14 @@ void Proc4()
 }
 
 
-void Proc5()
+void Proc5(void)
 {
   Char1Glob = 'A';
   BoolGlob = FALSE;
 }
 
 
-void Proc6(EnumParIn, EnumParOut)
-REG Enumeration EnumParIn;
-REG Enumeration *EnumParOut;
+void Proc6(REG Enumeration EnumParIn, REG Enumeration *EnumParOut)
 {
   *EnumParOut = EnumParIn;
   if (!Func3(EnumParIn)) *EnumParOut = Ident4;
@@ -477,10 +471,7 @@ REG Enumeration *EnumParOut;
 }
 
 
-void Proc7(IntParI1, IntParI2, IntParOut)
-OneToFifty IntParI1;
-OneToFifty IntParI2;
-OneToFifty *IntParOut;
+void Proc7(OneToFifty IntParI1, OneToFifty IntParI2, OneToFifty *IntParOut)
 {
   REG OneToFifty IntLoc;
 
@@ -490,11 +481,8 @@ OneToFifty *IntParOut;
 }
 
 
-void Proc8(Array1Par, Array2Par, IntParI1, IntParI2)
-Array1Dim Array1Par;
-Array2Dim Array2Par;
-OneToFifty IntParI1;
-OneToFifty IntParI2;
+void Proc8(Array1Dim Array1Par, Array2Dim Array2Par,
+		   OneToFifty IntParI1, OneToFifty IntParI2)
 {
   REG OneToFifty IntLoc;
   REG OneToFifty IntIndex;
@@ -512,9 +500,7 @@ OneToFifty IntParI2;
 }
 
 
-Enumeration Func1(CharPar1, CharPar2)
-CapitalLetter CharPar1;
-CapitalLetter CharPar2;
+Enumeration Func1(CapitalLetter CharPar1, CapitalLetter CharPar2)
 {
   REG CapitalLetter CharLoc1;
   REG CapitalLetter CharLoc2;
@@ -529,9 +515,7 @@ CapitalLetter CharPar2;
 }
 
 
-boolean Func2(StrParI1, StrParI2)
-String30 StrParI1;
-String30 StrParI2;
+boolean Func2(String30 StrParI1, String30 StrParI2)
 {
   REG OneToThirty IntLoc;
   REG CapitalLetter CharLoc;
@@ -556,8 +540,7 @@ String30 StrParI2;
 }
 
 
-boolean Func3(EnumParIn)
-REG Enumeration EnumParIn;
+boolean Func3(REG Enumeration EnumParIn)
 {
   REG Enumeration EnumLoc;
 
@@ -569,10 +552,7 @@ REG Enumeration EnumParIn;
 
 
 #ifdef	NOSTRUCTASSIGN
-memcpy(d, s, l)
-register char *d;
-register char *s;
-register int l;
+memcpy(register char *d, register char *s, register int l)
 {
   while (l--) *d++ = *s++;
 }
diff --git a/minix/commands/dosread/dosread.c b/minix/commands/dosread/dosread.c
index 1757d7a00..b3aebb5a2 100644
--- a/minix/commands/dosread/dosread.c
+++ b/minix/commands/dosread/dosread.c
@@ -146,29 +146,26 @@ BOOL free_range(unsigned short *first, unsigned short *last);
 long lmin(long a, long b);
 
 
-void usage(prog_name)
-register char *prog_name;
+void usage(register char *prog_name)
 {
   fprintf (stderr, "Usage: %s [%s\n", prog_name,
 	     (dos_dir ? "-lr] drive [dir]" : "-a] drive file"));
   exit(1);
 }
 
-unsigned c2u2(ucarray)
-unsigned char *ucarray;
+unsigned c2u2(unsigned char *ucarray)
 {
   return ucarray[0] + (ucarray[1] << 8);	/* parens vital */
 }
 
-unsigned long c4u4(ucarray)
-unsigned char *ucarray;
+unsigned long c4u4(unsigned char *ucarray)
 {
   return ucarray[0] + ((unsigned long) ucarray[1] << 8) +
 		      ((unsigned long) ucarray[2] << 16) +
 		      ((unsigned long) ucarray[3] << 24);
 }
 
-void determine()
+void determine(void)
 {
   struct dosboot {
 	unsigned char cjump[2];	/* unsigneds avoid bugs */
@@ -292,9 +289,7 @@ void determine()
   }
 }
 
-int main(argc, argv)
-int argc;
-register char *argv[];
+int main(int argc, register char *argv[])
 {
   register char *arg_ptr = slash(argv[0]);
   DIRECTORY *entry;
@@ -438,11 +433,7 @@ register char *argv[];
  *	separated by slashes, but can be longer than than 
  *	8+3 characters (The rest is ignored).
  */
-DIRECTORY *directory(dir, entries, function, pathname)
-DIRECTORY *dir;
-int entries;
-int function;
-register char *pathname;
+DIRECTORY *directory(DIRECTORY *dir, int entries, int function, register char *pathname)
 {
   register DIRECTORY *dir_ptr = dir;
   DIRECTORY *mem = NULL;
@@ -564,8 +555,7 @@ register char *pathname;
   return NULL;
 }
 
-void extract(entry)
-register DIRECTORY *entry;
+void extract(register DIRECTORY *entry)
 {
   register unsigned short cl_no = entry->d_cluster;
   char buffer[MAX_CLUSTER_SIZE];
@@ -614,18 +604,14 @@ register DIRECTORY *entry;
 
 /* Minimum of two long values
  */
-long lmin (a, b)
-long a, b;
+long lmin (long a, long b)
 {
 	if (a < b) return a;
 	else return b;
 }
 
 
-void make_file(dir_ptr, entries, name)
-DIRECTORY *dir_ptr;
-int entries;
-char *name;
+void make_file(DIRECTORY *dir_ptr, int entries, char *name)
 {
   register DIRECTORY *entry = new_entry(dir_ptr, entries);
   register char *ptr;
@@ -693,8 +679,7 @@ done:
 
 unsigned short mon_len[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
 
-void fill_date(entry)
-DIRECTORY *entry;
+void fill_date(DIRECTORY *entry)
 {
   register long cur_time = time(NULL) - DOS_TIME;
   unsigned short year = 0, month = 1, day, hour, minutes, seconds;
@@ -733,9 +718,7 @@ DIRECTORY *entry;
   entry->d_time = (hour << 11) | (minutes << 5) | seconds;
 }
 
-char *make_name(dir_ptr, dir_fl)
-register DIRECTORY *dir_ptr;
-short dir_fl;
+char *make_name(register DIRECTORY *dir_ptr, short dir_fl)
 {
   static char name_buf[14];
   register char *ptr = name_buf;
@@ -760,9 +743,7 @@ short dir_fl;
 }
 
 
-int fill(buffer, size)
-register char *buffer;
-size_t	size;
+int fill(register char *buffer, size_t size)
 {
   static BOOL nl_mark = FALSE;
   char *last = &buffer[size];
@@ -799,17 +780,14 @@ char *month[] = {
 	 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
 };
 
-void xmodes(mode)
-int mode;
+void xmodes(int mode)
 {
   printf ( "\t%c%c%c%c%c", (mode & SUB_DIR) ? 'd' : '-',
 	     (mode & 02) ? 'h' : '-', (mode & 04) ? 's' : '-',
 	     (mode & 01) ? '-' : 'w', (mode & 0x20) ? 'a' : '-');
 }
 
-void show(dir_ptr, name)
-DIRECTORY *dir_ptr;
-char *name;
+void show(DIRECTORY *dir_ptr, char *name)
 {
   register unsigned short e_date = dir_ptr->d_date;
   register unsigned short e_time = dir_ptr->d_time;
@@ -837,7 +815,7 @@ char *name;
    month[((e_date & MONTH) >> 5) - 1], ((e_date & YEAR) >> 9) + 1980);
 }
 
-void free_blocks()
+void free_blocks(void)
 {
   register unsigned short cl_no;
   long nr_free = 0;
@@ -856,8 +834,7 @@ void free_blocks()
 }
 
 
-DIRECTORY *read_cluster(cluster)
-register unsigned int cluster;
+DIRECTORY *read_cluster(register unsigned int cluster)
 {
   register DIRECTORY *sub_dir;
 
@@ -879,8 +856,7 @@ static unsigned short cl_index = 2;
  * Warning: Assumes that all of the range is used before the next call
  *	to free_range or free_cluster.
  */
-BOOL free_range (first, last)
-unsigned short *first, *last;
+BOOL free_range (unsigned short *first, unsigned short *last)
 {
   while (cl_index < total_clusters && next_cluster(cl_index) != FREE)
 	cl_index++;
@@ -902,8 +878,7 @@ unsigned short *first, *last;
  * Warning: Assumes that the cluster is used before the next call
  *	to free_range or free_cluster.
  */
-unsigned short free_cluster(leave_fl)
-BOOL leave_fl;
+unsigned short free_cluster(BOOL leave_fl)
 {
   while (cl_index < total_clusters && next_cluster(cl_index) != FREE)
 	cl_index++;
@@ -918,8 +893,7 @@ BOOL leave_fl;
 
 /* read a portion of the fat containing |cl_no| into the cache
  */
-void read_fat (cl_no) 
-  unsigned int cl_no;
+void read_fat (unsigned int cl_no) 
 {
 
   if (!cooked_fat) {
@@ -999,7 +973,7 @@ void read_fat (cl_no)
 
 /* flush the fat cache out to disk
  */
-void flush_fat ()
+void flush_fat (void)
 {
   if (fat_16) {
 	if (big_endian) {
@@ -1037,9 +1011,7 @@ void flush_fat ()
 
 /* make cl_2 the successor of cl_1
  */
-void link_fat(cl_1, cl_2)
-unsigned int cl_1;
-unsigned int cl_2;
+void link_fat(unsigned int cl_1, unsigned int cl_2)
 {
   if (cl_1 < fat_low || cl_1 > fat_high) {
   	if (fat_dirty) flush_fat ();
@@ -1050,8 +1022,7 @@ unsigned int cl_2;
 }
 
 
-unsigned short next_cluster(cl_no)
-register unsigned int cl_no;
+unsigned short next_cluster(register unsigned int cl_no)
 {
   if (cl_no < fat_low || cl_no > fat_high) {
   	if (fat_dirty) flush_fat ();
@@ -1060,8 +1031,7 @@ register unsigned int cl_no;
   return cooked_fat [cl_no - fat_low];
 }
 
-char *slash(str)
-register char *str;
+char *slash(register char *str)
 {
   register char *result = str;
 
@@ -1071,9 +1041,7 @@ register char *str;
   return result;
 }
 
-void add_path(file, slash_fl)
-char *file;
-BOOL slash_fl;
+void add_path(char *file, BOOL slash_fl)
 {
   register char *ptr = path;
 
@@ -1091,11 +1059,7 @@ BOOL slash_fl;
 }
 
 
-void disk_io(op, seek, address, bytes)
-register BOOL op;
-unsigned long seek;
-void *address;
-register unsigned bytes;
+void disk_io(register BOOL op, unsigned long seek, void *address, register unsigned bytes)
 {
   unsigned int r;
 
diff --git a/minix/commands/fsck.mfs/fsck.c b/minix/commands/fsck.mfs/fsck.c
index fbffc8314..afa533119 100644
--- a/minix/commands/fsck.mfs/fsck.c
+++ b/minix/commands/fsck.mfs/fsck.c
@@ -224,7 +224,7 @@ void printtotal(void);
 void chkdev(char *f, char **clist, char **ilist, char **zlist);
 
 /* Initialize the variables used by this program. */
-void initvars()
+void initvars(void)
 {
   register int level;
 
@@ -238,23 +238,20 @@ void initvars()
 }
 
 /* Print the string `s' and exit. */
-void fatal(s)
-char *s;
+void fatal(char *s)
 {
   printf("%s\nfatal\n", s);
   exit(FSCK_EXIT_CHECK_FAILED);
 }
 
 /* Test for end of line. */
-int eoln(c)
-int c;
+int eoln(int c)
 {
   return(c == EOF || c == '\n' || c == '\r');
 }
 
 /* Ask a question and get the answer unless automatic is set. */
-int yes(question)
-char *question;
+int yes(char *question)
 {
   register int c, answerchar;
   static int note = 0;
@@ -280,8 +277,7 @@ char *question;
 }
 
 /* Convert string to integer.  Representation is octal. */
-int atoo(s)
-register char *s;
+int atoo(register char *s)
 {
   register int n = 0;
 
@@ -293,9 +289,7 @@ register char *s;
 }
 
 /* If repairing the file system, print a prompt and get a string from user. */
-int input(buf, size)
-char *buf;
-int size;
+int input(char *buf, int size)
 {
   register char *p = buf;
 
@@ -319,8 +313,7 @@ int size;
 }
 
 /* Allocate some memory and zero it. */
-char *alloc(nelem, elsize)
-unsigned nelem, elsize;
+char *alloc(unsigned nelem, unsigned elsize)
 {
   char *p;
 
@@ -334,8 +327,7 @@ unsigned nelem, elsize;
 }
 
 /* Print the name in a directory entry. */
-void printname(s)
-char *s;
+void printname(char *s)
 {
   register int n = MFS_NAME_MAX;
   int c;
@@ -361,9 +353,7 @@ void printrec(struct stack *sp)
 }
 
 /* Print the current pathname.  */
-void printpath(mode, nlcr)
-int mode;
-int nlcr;
+void printpath(int mode, int nlcr)
 {
   if (ftop->st_next == 0)
 	putchar('/');
@@ -381,7 +371,7 @@ int nlcr;
 }
 
 /* Open the device.  */
-void devopen()
+void devopen(void)
 {
   if ((dev = open(fsck_device,
     (repair || markdirty) ? O_RDWR : O_RDONLY)) < 0) {
@@ -391,7 +381,7 @@ void devopen()
 }
 
 /* Close the device. */
-void devclose()
+void devclose(void)
 {
   if (close(dev) != 0) {
 	perror("close");
@@ -400,9 +390,7 @@ void devclose()
 }
 
 /* Read or write a block. */
-void devio(bno, dir)
-block_nr bno;
-int dir;
+void devio(block_nr bno, int dir)
 {
   off_t r;
 
@@ -437,11 +425,7 @@ printf("%s at block %5d\n", dir == READING ? "reading " : "writing", bno);
 /* Read `size' bytes from the disk starting at block 'block' and
  * byte `offset'.
  */
-void devread(block, offset, buf, size)
-long block;
-long offset;
-char *buf;
-int size;
+void devread(long block, long offset, char *buf, int size)
 {
   if(!block_size) fatal("devread() with unknown block size");
   if (offset >= block_size)
@@ -456,11 +440,7 @@ int size;
 /* Write `size' bytes to the disk starting at block 'block' and
  * byte `offset'.
  */
-void devwrite(block, offset, buf, size)
-long block;
-long offset;
-char *buf;
-int size;
+void devwrite(long block, long offset, char *buf, int size)
 {
   if(!block_size) fatal("devwrite() with unknown block size");
   if (!repair) fatal("internal error (devwrite)");
@@ -476,24 +456,19 @@ int size;
 }
 
 /* Print a string with either a singular or a plural pronoun. */
-void pr(fmt, cnt, s, p)
-char *fmt, *s, *p;
-int cnt;
+void pr(char *fmt, int cnt, char *s, char *p)
 {
   printf(fmt, cnt, cnt == 1 ? s : p);
 }
 
 /* Same as above, but with a long argument */
-void lpr(fmt, cnt, s, p)
-char *fmt, *s, *p;
-long cnt;
+void lpr(char *fmt, long cnt, char *s, char *p)
 {
   printf(fmt, cnt, cnt == 1 ? s : p);
 }
 
 /* Convert string to number. */
-bit_nr getnumber(s)
-register char *s;
+bit_nr getnumber(register char *s)
 {
   register bit_nr n = 0;
 
@@ -505,8 +480,7 @@ register char *s;
 }
 
 /* See if the list pointed to by `argv' contains numbers. */
-char **getlist(argv, type)
-char ***argv, *type;
+char **getlist(char ***argv, char *type)
 {
   register char **list = *argv;
   register int empty = 1;
@@ -525,7 +499,7 @@ char ***argv, *type;
 /* Make a listing of the super block.  If `repair' is set, ask the user
  * for changes.
  */
-void lsuper()
+void lsuper(void)
 {
   char buf[80];
 
@@ -599,7 +573,7 @@ void rw_super(int put)
 }
 
 /* Check the super block for reasonable contents. */
-void chksuper()
+void chksuper(void)
 {
   register int n;
   register off_t maxsize;
@@ -667,8 +641,7 @@ int inooff(int inn)
 /* Make a listing of the inodes given by `clist'.  If `repair' is set, ask
  * the user for changes.
  */
-void lsi(clist)
-char **clist;
+void lsi(char **clist)
 {
   register bit_nr bit;
   register ino_t ino;
@@ -698,8 +671,7 @@ char **clist;
 }
 
 /* Allocate `nblk' blocks worth of bitmap. */
-bitchunk_t *allocbitmap(nblk)
-int nblk;
+bitchunk_t *allocbitmap(int nblk)
 {
   register bitchunk_t *bitmap;
 
@@ -709,10 +681,7 @@ int nblk;
 }
 
 /* Load the bitmap starting at block `bno' from disk. */
-void loadbitmap(bitmap, bno, nblk)
-bitchunk_t *bitmap;
-block_nr bno;
-int nblk;
+void loadbitmap(bitchunk_t *bitmap, block_nr bno, int nblk)
 {
   register int i;
   register bitchunk_t *p;
@@ -724,10 +693,7 @@ int nblk;
 }
 
 /* Write the bitmap starting at block `bno' to disk. */
-void dumpbitmap(bitmap, bno, nblk)
-bitchunk_t *bitmap;
-block_nr bno;
-int nblk;
+void dumpbitmap(bitchunk_t *bitmap, block_nr bno, int nblk)
 {
   register int i;
   register bitchunk_t *p = bitmap;
@@ -737,10 +703,7 @@ int nblk;
 }
 
 /* Set the bits given by `list' in the bitmap. */
-void fillbitmap(bitmap, lwb, upb, list)
-bitchunk_t *bitmap;
-bit_nr lwb, upb;
-char **list;
+void fillbitmap(bitchunk_t *bitmap, bit_nr lwb, bit_nr upb, char **list)
 {
   register bit_nr bit;
 
@@ -757,14 +720,13 @@ char **list;
 }
 
 /* Deallocate the bitmap `p'. */
-void freebitmap(p)
-bitchunk_t *p;
+void freebitmap(bitchunk_t *p)
 {
   free((char *) p);
 }
 
 /* Get all the bitmaps used by this program. */
-void getbitmaps()
+void getbitmaps(void)
 {
   imap = allocbitmap(N_IMAP);
   zmap = allocbitmap(N_ZMAP);
@@ -774,7 +736,7 @@ void getbitmaps()
 }
 
 /* Release all the space taken by the bitmaps. */
-void putbitmaps()
+void putbitmaps(void)
 {
   freebitmap(imap);
   freebitmap(zmap);
@@ -786,12 +748,7 @@ void putbitmaps()
 /* `w1' and `w2' are differing words from two bitmaps that should be
  * identical.  Print what's the matter with them.
  */
-void chkword(w1, w2, bit, type, n, report, phys)
-unsigned w1, w2;
-char *type;
-bit_nr bit;
-int *n, *report;
-bit_nr phys;
+void chkword(unsigned w1, unsigned w2, bit_nr bit, char *type, int *n, int *report, bit_nr phys)
 {
   for (; (w1 | w2); w1 >>= 1, w2 >>= 1, bit++, phys++)
 	if ((w1 ^ w2) & 1 && ++(*n) % MAXPRINT == 0 && *report &&
@@ -810,12 +767,7 @@ bit_nr phys;
 /* Check if the given (correct) bitmap is identical with the one that is
  * on the disk.  If not, ask if the disk should be repaired.
  */
-void chkmap(cmap, dmap, bit, blkno, nblk, type)
-bitchunk_t *cmap, *dmap;
-bit_nr bit;
-block_nr blkno;
-int nblk;
-char *type;
+void chkmap(bitchunk_t *cmap, bitchunk_t *dmap, bit_nr bit, block_nr blkno, int nblk, char *type)
 {
   register bitchunk_t *p = dmap, *q = cmap;
   int report = 1, nerr = 0;
@@ -841,7 +793,7 @@ char *type;
 }
 
 /* See if the inodes that aren't allocated are cleared. */
-void chkilist()
+void chkilist(void)
 {
   register ino_t ino = 1;
   mode_t mode;
@@ -864,7 +816,7 @@ void chkilist()
 }
 
 /* Allocate an array to maintain the inode reference counts in. */
-void getcount()
+void getcount(void)
 {
   count = (nlink_t *) alloc((unsigned) (sb.s_ninodes + 1), sizeof(nlink_t));
 }
@@ -898,7 +850,7 @@ void counterror(ino_t ino)
  * Thus, when the whole file system has been traversed, all the entries
  * should be zero.
  */
-void chkcount()
+void chkcount(void)
 {
   register ino_t ino;
 
@@ -908,7 +860,7 @@ void chkcount()
 }
 
 /* Deallocate the `count' array. */
-void freecount()
+void freecount(void)
 {
   free((char *) count);
 }
@@ -983,10 +935,7 @@ int Remove(dir_struct *dp)
 }
 
 /* Convert string so that embedded control characters are printable. */
-void make_printable_name(dst, src, n)
-register char *dst;
-register char *src;
-register int n;
+void make_printable_name(register char *dst, register char *src, register int n)
 {
   register int c;
 
@@ -1194,11 +1143,7 @@ int chksymlinkzone(ino_t ino, d_inode *ip, off_t pos, zone_nr zno)
 }
 
 /* There is something wrong with the given zone.  Print some details. */
-void errzone(mess, zno, level, pos)
-char *mess;
-zone_nr zno;
-int level;
-off_t pos;
+void errzone(char *mess, zone_nr zno, int level, off_t pos)
 {
   printf("%s zone in ", mess);
   printpath(1, 0);
@@ -1215,10 +1160,7 @@ off_t pos;
 /* Found the given zone in the given inode.  Check it, and if ok, mark it
  * in the zone bitmap.
  */
-int markzone(zno, level, pos)
-zone_nr zno;
-int level;
-off_t pos;
+int markzone(zone_nr zno, int level, off_t pos)
 {
   register bit_nr bit = (bit_nr) zno - FIRST + 1;
 
@@ -1259,8 +1201,7 @@ int chkindzone(ino_t ino, d_inode *ip, off_t *pos, zone_nr zno, int level)
 /* Return the size of a gap in the file, represented by a null zone number
  * at some level of indirection.
  */
-off_t jump(level)
-int level;
+off_t jump(int level)
 {
   off_t power = ZONE_SIZE;
 
@@ -1451,8 +1392,7 @@ int chkinode(ino_t ino, d_inode *ip)
 }
 
 /* Check the directory entry pointed to by dp, by checking the inode. */
-int descendtree(dp)
-dir_struct *dp;
+int descendtree(dir_struct *dp)
 {
   d_inode inode;
   register ino_t ino = dp->d_inum;
@@ -1488,7 +1428,7 @@ dir_struct *dp;
 }
 
 /* Check the file system tree. */
-void chktree()
+void chktree(void)
 {
   dir_struct dir;
 
@@ -1501,7 +1441,7 @@ void chktree()
 }
 
 /* Print the totals of all the objects found. */
-void printtotal()
+void printtotal(void)
 {
   if(preen) {
   	printf("%d files, %d directories, %d free inodes, %ld free zones\n",
@@ -1535,8 +1475,7 @@ void printtotal()
  * listed by `zlist' should be watched for while checking the file system.
  */
 
-void chkdev(f, clist, ilist, zlist)
-char *f, **clist, **ilist, **zlist;
+void chkdev(char *f, char **clist, char **ilist, char **zlist)
 {
   if (automatic) repair = 1;
   fsck_device = f;
@@ -1613,9 +1552,7 @@ char *f, **clist, **ilist, **zlist;
   devclose();
 }
 
-int main(argc, argv)
-int argc;
-char **argv;
+int main(int argc, char **argv)
 {
   register char **clist = 0, **ilist = 0, **zlist = 0;
   int badflag = 0;
diff --git a/minix/commands/ifdef/ifdef.c b/minix/commands/ifdef/ifdef.c
index 1c39d21a9..8a54844dc 100644
--- a/minix/commands/ifdef/ifdef.c
+++ b/minix/commands/ifdef/ifdef.c
@@ -66,13 +66,11 @@ void gettable(void);
 void parse(void);
 void usage(void);
 
-#ifdef __STDC__
+
+/* Get next arg from file into cbuf, */
+/* returning the character that      */
+/* terminated it. Cbuf returns 0     */
 char fgetarg ( FILE *stream , char *cbuf )
-#else
-char fgetarg(stream, cbuf)	/* Get next arg from file into cbuf, */
-FILE *stream;			/* returning the character that      */
-char *cbuf;			/* terminated it. Cbuf returns 0     */
-#endif
 {				/* if no arg. EOF is returned if no  */
   int ch;			/* args left in file.                */
   int i;
@@ -95,12 +93,7 @@ char *cbuf;			/* terminated it. Cbuf returns 0     */
 }
 
 
-#ifdef __STDC__
 int find ( char *sym )
-#else
-int find(sym)
-char *sym;
-#endif
 {				/* Return DEF if defined else UNDEF */
 
   deftemp = defptr;
@@ -118,14 +111,10 @@ char *sym;
 #define Undefine(x,y)	defit(x,y,UNDEF)
 #define Ignore(x,y)	defit(x,y,IGN)
 
-#ifdef __STDC__
+/* Add symbol to the define list */
+/* Mode: MUTABLE etc      */
+/* Type: DEF, UNDEF, IGN  */
 void defit ( char *sym , int redef , int type )
-#else
-void defit(sym, redef, type)	/* Add symbol to the define list */
-char *sym;
-char redef;			/* Mode: MUTABLE etc      */
-char type;			/* Type: DEF, UNDEF, IGN  */
-#endif
 {
   struct DEFINE *temp;
   char c;
@@ -167,11 +156,7 @@ char type;			/* Type: DEF, UNDEF, IGN  */
 
 
 
-#ifdef __STDC__
 void stop ( void )
-#else
-void stop()
-#endif
 {				/* Stop: Tidy up at EOF */
   if (table) printtable();
   (void)fclose(zin);
@@ -181,23 +166,16 @@ void stop()
 #define Goto	{ line++; if (ch!='\n') gotoeoln(); }
 #define Print	{ line++; if (ch!='\n') prteoln();  }
 
-#ifdef __STDC__
+/* Go to the end of the line */
 void gotoeoln ( void )
-#else
-void gotoeoln()			/* Go to the end of the line */
-#endif
 {
   int ch;
   while ((ch = fgetc(zin)) != '\n')
 	if (ch == EOF) stop();
 }
 
-
-#ifdef __STDC__
+/* Print to the end of the line */
 void prteoln ( void )
-#else
-void prteoln()			/* Print to the end of the line */
-#endif
 {
   int ch;
   while ((ch = fgetc(zin)) != '\n')
@@ -209,11 +187,8 @@ void prteoln()			/* Print to the end of the line */
 }
 
 
-#ifdef __STDC__
+/* Print the defines in the SLL */
 void printtable ( void )
-#else
-void printtable()		/* Print the defines in the SLL */
-#endif
 {
   struct DEFINE *temp;
 
@@ -234,11 +209,7 @@ void printtable()		/* Print the defines in the SLL */
   }
 }
 
-#ifdef __STDC__
 char getendif ( void )
-#else
-char getendif()
-#endif
 {				/* Find matching endif when ignoring */
   char word[80];		/* Buffer for symbols */
   int ch;
@@ -268,11 +239,8 @@ char getendif()
 }
 
 
-#ifdef __STDC__
+/* Get & print a table of defines etc.  */
 void gettable ( void )
-#else
-void gettable()			/* Get & print a table of defines etc.  */
-#endif
 {
 
   char word[80];		/* Buffer for symbols */
@@ -313,11 +281,7 @@ void gettable()			/* Get & print a table of defines etc.  */
 
 
 
-#ifdef __STDC__
 void parse ( void )
-#else
-void parse()
-#endif
 {				/* Parse & remove ifdefs from C source */
   char word[80];		/* Buffer for symbols */
   int ch;
@@ -435,24 +399,14 @@ void parse()
 }
 
 
-#ifdef __STDC__
 void usage ( void )
-#else
-void usage()
-#endif
 {
   (void)fprintf(stderr, "Usage: ifdef [-t] [-Dsymbol] [-dsymbol] [-Usymbol] [-Isymbol] <file>\n");
   exit(0);
 }
 
 
-#ifdef __STDC__
 int main(int argc , char *argv [])
-#else
-int main(argc, argv)
-int argc;
-char *argv[];
-#endif
 {
   char sym[80];			/* Temp symbol storage */
   int c;
diff --git a/minix/commands/isoread/isoread.c b/minix/commands/isoread/isoread.c
index a2e863b1a..4a635468c 100644
--- a/minix/commands/isoread/isoread.c
+++ b/minix/commands/isoread/isoread.c
@@ -184,10 +184,7 @@ int Verbose = 0;        /* 1 = Print all info on directories */
 int ByteOffset = 0;     /* 1 = Print byte offset and length of files */
 int Aflag = 0;          /* 1 = Suppress output of \r  */
 
-int iso_cmp(name, dir_ptr, dir_flag)
-char *name;
-struct dir_entry *dir_ptr;
-int dir_flag;
+int iso_cmp(char *name, struct dir_entry *dir_ptr, int dir_flag)
 {
 /* Compare name with directory entries, looking for match with a dirname.
  * An iso9660 filename is terminated by ";n", where n will probably 
@@ -215,7 +212,7 @@ int dir_flag;
 }
 
 
-void usage()
+void usage(void)
 {
   if (Read_Dir)
    fprintf (STDERR, "Usage: isodir [-lrB] inputfile [dir]\n");
@@ -227,9 +224,7 @@ void usage()
 }
 
 
-int main(argc, argv)
-int argc;
-char **argv;
+int main(int argc, char **argv)
 {
   struct dir_entry *entry;
   char path[MAX_PATH_LENGTH];
@@ -352,8 +347,7 @@ char **argv;
 }
 
 
-struct dir_entry *look_up(path)
-char *path;
+struct dir_entry *look_up(char *path)
 {
   /* Lookup a file name */
 
@@ -428,9 +422,7 @@ char *path;
 }
   
 
-void recurse_dir(path, dir_ptr)
-char *path;
-struct dir_entry *dir_ptr;
+void recurse_dir(char *path, struct dir_entry *dir_ptr)
 {
   /* Recursively descend all directories starting with dir_ptr */
 
@@ -503,8 +495,7 @@ struct dir_entry *dir_ptr;
 }
     
 
-void list_dir(dir_ptr)
-struct dir_entry *dir_ptr;
+void list_dir(struct dir_entry *dir_ptr)
 {
   /* List all entries in a directory */
   int tty;
@@ -601,8 +592,7 @@ struct dir_entry *dir_ptr;
 }
 
 
-void print_dir_date(date)
-char *date;
+void print_dir_date(char *date)
 {
   /* Print date in a directory entry */
 
@@ -623,8 +613,7 @@ char *date;
 }
 
 
-void list_file(dir_ptr)
-struct dir_entry *dir_ptr;
+void list_file(struct dir_entry *dir_ptr)
 {
   /* List contents of a file */
 
@@ -658,8 +647,7 @@ struct dir_entry *dir_ptr;
 }
 
 
-void print_date(date)
-char *date;
+void print_date(char *date)
 {
   /* Print the date in a volume descriptor */
 
@@ -680,8 +668,7 @@ char *date;
            date[13]);
 }
 
-void iso_info(vol_desc)
-struct iso9660_descriptor *vol_desc;
+void iso_info(struct iso9660_descriptor *vol_desc)
 {
   int i;
 
@@ -711,8 +698,7 @@ struct iso9660_descriptor *vol_desc;
 }
 
 
-void hs_info(vol_desc)
-struct high_sierra_descriptor *vol_desc;
+void hs_info(struct high_sierra_descriptor *vol_desc)
 {
   int i;
 
@@ -730,7 +716,7 @@ struct high_sierra_descriptor *vol_desc;
 }
   
 
-int valid_fs()               
+int valid_fs(void) 
 {
 
   int i;
@@ -764,10 +750,7 @@ int valid_fs()
 }
 
 
-void read_device(offset, nr_of_bytes, buffer)
-long offset;
-int nr_of_bytes;
-char *buffer;
+void read_device(long offset, int nr_of_bytes, char *buffer)
 {
   int bytes_read;
 
@@ -790,15 +773,13 @@ char *buffer;
 
 /* The ISO9660 functions */
 
-int iso_711 (c)
-char *c;
+int iso_711 (char *c)
 {
   return (*c & 0xff);
 }
 
 
-int iso_712 (c)
-char *c;
+int iso_712 (char *c)
 {
   int n;
 	
@@ -807,20 +788,17 @@ char *c;
   return n;
 }
 
-int iso_721 (c)
-char *c;
+int iso_721 (char *c)
 {
   return ((c[0] & 0xff) | ((c[1] & 0xff) << 8));
 }
 
-int iso_722 (c)
-char *c;
+int iso_722 (char *c)
 {
   return (((c[0] & 0xff) << 8) | (c[1] & 0xff));
 }
 
-int iso_723 (c)
-char *c;
+int iso_723 (char *c)
 {
   if (c[0] != c[3] || c[1] != c[2]) 
   {
@@ -830,8 +808,7 @@ char *c;
   return (iso_721 (c));
 }
 
-long iso_731 (c)
-char *c;
+long iso_731 (char *c)
 {
   return ((long)(c[0] & 0xff)
        | ((long)(c[1] & 0xff) << 8)
@@ -840,8 +817,7 @@ char *c;
 }
 
 
-long iso_732 (c)
-char *c;
+long iso_732 (char *c)
 {
   return (((long)(c[0] & 0xff) << 24)
         | (((long)c[1] & 0xff) << 16)
@@ -849,8 +825,7 @@ char *c;
         | ((long)c[3] & 0xff));
 }
 
-long iso_733 (c)
-char *c;
+long iso_733 (char *c)
 {
 int i;
 
diff --git a/minix/commands/mail/mail.c b/minix/commands/mail/mail.c
index e9a553fb9..5550c2694 100644
--- a/minix/commands/mail/mail.c
+++ b/minix/commands/mail/mail.c
@@ -91,9 +91,7 @@ char *whoami(void);
 void dohelp(void);
 int filesize(char *name);
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char *argv[])
 {
   int c;
 
@@ -161,9 +159,7 @@ char *argv[];
   return(0);
 }
 
-int deliver(count, vec)
-int count;
-char *vec[];
+int deliver(int count, char *vec[])
 {
   int i, j;
   int errs = 0;			/* count of errors */
@@ -343,7 +339,7 @@ nobox:
  * for interactive mails, this might be the place to do it (though the
  * case where a MAILER is being used would also need to be handled).
  */
-FILE *makerewindable()
+FILE *makerewindable(void)
 {
   FILE *tempfp;			/* temp file used for copy */
   int c;			/* character being copied */
@@ -387,8 +383,7 @@ done:
   return tempfp;
 }
 
-int copy(fromfp, tofp)
-FILE *fromfp, *tofp;
+int copy(FILE *fromfp, FILE *tofp)
 {
   int c;			/* character being copied */
   int state;			/* ".\n" and postmark detection state */
@@ -455,7 +450,7 @@ done:
   return 0;
 }
 
-void readbox()
+void readbox(void)
 {
   char linebuf[512];
   struct letter *let;
@@ -496,7 +491,7 @@ void readbox()
   }
 }
 
-void printall()
+void printall(void)
 {
   struct letter *let;
 
@@ -512,7 +507,7 @@ void printall()
   }
 }
 
-void interact()
+void interact(void)
 {
   char linebuf[512];		/* user input line */
   struct letter *let, *next;	/* current and next letter */
@@ -592,15 +587,13 @@ void interact()
   }
 }
 
-void onint(dummy)
-int dummy;	/* to satisfy ANSI compilers */
+/* dummy to satisfy ANSI compilers */
+void onint(int dummy)
 {
   longjmp(printjump, 1);
 }
 
-void savelet(let, savefile)
-struct letter *let;
-char *savefile;
+void savelet(struct letter *let, char *savefile)
 {
   int waitstat, pid;
   FILE *savefp;
@@ -628,7 +621,7 @@ char *savefile;
   exit(0);
 }
 
-void updatebox()
+void updatebox(void)
 {
   FILE *tempfp;			/* fp for tempfile */
   char lockname[PATHLEN];	/* maildrop lock */
@@ -683,9 +676,7 @@ void updatebox()
   if (usedrop) unlink(lockname);
 }
 
-void printlet(let, tofp)
-struct letter *let;
-FILE *tofp;
+void printlet(struct letter *let, FILE *tofp)
 {
   off_t current, limit;
   int c;
@@ -699,8 +690,7 @@ FILE *tofp;
   }
 }
 
-void doshell(command)
-char *command;
+void doshell(char *command)
 {
   int waitstat, pid;
   char *shell;
@@ -725,14 +715,13 @@ char *command;
   exit(127);
 }
 
-void usage()
+void usage(void)
 {
   fprintf(stderr, "usage: mail [-epqr] [-f file]\n");
   fprintf(stderr, "       mail [-dtv] [-s subject] user [...]\n");
 }
 
-char *basename(name)
-char *name;
+char *basename(char *name)
 {
   char *p;
 
@@ -742,7 +731,7 @@ char *name;
 	return p + 1;
 }
 
-char *whoami()
+char *whoami(void)
 {
   struct passwd *pw;
 
@@ -752,7 +741,7 @@ char *whoami()
 	return "nobody";
 }
 
-void dohelp()
+void dohelp(void)
 {
   FILE *fp;
   char buffer[80];
@@ -768,8 +757,7 @@ void dohelp()
   fclose(fp);
 }
 
-int filesize(name)
-char *name ;
+int filesize(char *name)
 {
   struct stat buf;
  
diff --git a/minix/commands/mount/mount.c b/minix/commands/mount/mount.c
index eafa6681d..4166ee9e2 100644
--- a/minix/commands/mount/mount.c
+++ b/minix/commands/mount/mount.c
@@ -20,9 +20,7 @@ int mount_all(void);
 
 static int write_mtab = 1;
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char *argv[])
 {
   int all = 0, i, v = 0, mountflags, srvflags;
   char **ap, *opt, *err, *type, *args, *device;
@@ -88,7 +86,7 @@ char *argv[];
   return(EXIT_SUCCESS);
 }
 
-void list()
+void list(void)
 {
   int n;
   char dev[PATH_MAX], mountpoint[PATH_MAX], type[MNTNAMELEN], flags[MNTFLAGLEN];
@@ -121,7 +119,7 @@ has_opt(char *mntopts, char *option)
 
 
 int
-mount_all()
+mount_all(void)
 {
 	struct fstab *fs;
 	int ro, mountflags;
@@ -165,7 +163,7 @@ mount_all()
 	return(EXIT_SUCCESS);
 }
 
-void usage()
+void usage(void)
 {
   std_err("Usage: mount [-a] [-r] [-e] [-t type] [-o options] special name\n");
   exit(1);
diff --git a/minix/commands/playwave/playwave.c b/minix/commands/playwave/playwave.c
index 3a59e780a..943d56998 100644
--- a/minix/commands/playwave/playwave.c
+++ b/minix/commands/playwave/playwave.c
@@ -60,7 +60,7 @@ DWORD data_len;
 /******** End of wave definitions *********/
 
 
-void usage()
+void usage(void)
 {
   fprintf(stderr, "Usage: playwav [-i] file\n");
   exit(-1);
diff --git a/minix/commands/prep/prep.c b/minix/commands/prep/prep.c
index acbded7ec..1551fe7e9 100644
--- a/minix/commands/prep/prep.c
+++ b/minix/commands/prep/prep.c
@@ -17,9 +17,7 @@ void skipline(void);
 int backslash(void);
 void usage(void);
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char *argv[])
 {
 
   int c;
@@ -66,7 +64,7 @@ char *argv[];
 }
 
 
-void skipline()
+void skipline(void)
 {
   char c;
 
@@ -74,7 +72,7 @@ void skipline()
 }
 
 
-int backslash()
+int backslash(void)
 {
 /* A backslash has been seen.  Eat troff stuff. */
 
@@ -129,7 +127,7 @@ int backslash()
   }
 }
 
-void usage()
+void usage(void)
 {
   printf("Usage: prep [file]\n");
   exit(1);
diff --git a/minix/commands/printroot/printroot.c b/minix/commands/printroot/printroot.c
index c6afd4efc..b2278d50a 100644
--- a/minix/commands/printroot/printroot.c
+++ b/minix/commands/printroot/printroot.c
@@ -31,9 +31,7 @@ int rflag;
 int main(int argc, char **argv);
 void done(char *name, int status);
 
-int main(argc, argv)
-int argc;
-char **argv;
+int main(int argc, char **argv)
 {
   DIR *dp;
   struct dirent *entry;
@@ -56,9 +54,7 @@ char **argv;
   return(0);			/* not reached */
 }
 
-void done(name, status)
-char *name;
-int status;
+void done(char *name, int status)
 {
   int v;
 
diff --git a/minix/commands/profile/profile.c b/minix/commands/profile/profile.c
index 43ec45547..f69a9e2dc 100644
--- a/minix/commands/profile/profile.c
+++ b/minix/commands/profile/profile.c
@@ -196,7 +196,7 @@ int handle_args(int argc, char *argv[])
 }
 
 
-int start()
+int start(void)
 {
  /* This is the "starter process" for statistical profiling.
   *
@@ -262,7 +262,7 @@ int start()
 }
 
 
-int stop()
+int stop(void)
 {
   /* This is the "stopper" process for statistical profiling.
    *
@@ -296,7 +296,7 @@ int stop()
 }
 
 
-int alloc_mem()
+int alloc_mem(void)
 {
   if ((mem_ptr = malloc(mem_size)) == 0) {
 	fprintf(stderr, "Unable to allocate memory.\n");
@@ -308,7 +308,7 @@ int alloc_mem()
 }
 
 
-int init_outfile()
+int init_outfile(void)
 {
   if ((outfile_fd = open(outfile, O_CREAT | O_TRUNC | O_WRONLY)) <= 0) {
 	fprintf(stderr, "Unable to create outfile %s.\n", outfile);
diff --git a/minix/commands/progressbar/progressbar.c b/minix/commands/progressbar/progressbar.c
index 4065fa9e5..eb25bf375 100644
--- a/minix/commands/progressbar/progressbar.c
+++ b/minix/commands/progressbar/progressbar.c
@@ -44,9 +44,7 @@ prettyprogress(long b, long maxb, time_t starttime)
   return;
 }
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char *argv[])
 {
 	long i = 0, count = 0;
 	int l;
diff --git a/minix/commands/recwave/recwave.c b/minix/commands/recwave/recwave.c
index cef26fb29..f90c09b6c 100644
--- a/minix/commands/recwave/recwave.c
+++ b/minix/commands/recwave/recwave.c
@@ -74,7 +74,7 @@ int old_stdin;
 struct termios old_tty, new_tty;
 int audio, file;
 
-void usage()
+void usage(void)
 {
   fprintf(stderr, "Usage: recwav [-b -s -r] file_name\n");
   exit(-1);
@@ -90,7 +90,7 @@ void terminate(int s)
   exit(0);		
 }
 
-void write_wave_header()
+void write_wave_header(void)
 {
   /* RIFF fields */
   r_fields.RIFF_id = RIFF_ID;
diff --git a/minix/commands/svrctl/svrctl.c b/minix/commands/svrctl/svrctl.c
index e9c2280de..0cd64149f 100644
--- a/minix/commands/svrctl/svrctl.c
+++ b/minix/commands/svrctl/svrctl.c
@@ -104,7 +104,7 @@ int main (int argc, char *argv[])
   return(EXIT_FAILURE);
 }
 
-static void usage()
+static void usage(void)
 {
   fprintf(stderr, "Usage:\n");
   fprintf(stderr, "  %s <vfs|pm> set <request> <value>\n", bin_name);
diff --git a/minix/commands/swifi/db_access.c b/minix/commands/swifi/db_access.c
index 2f8744534..bee593ae3 100644
--- a/minix/commands/swifi/db_access.c
+++ b/minix/commands/swifi/db_access.c
@@ -46,10 +46,7 @@ static unsigned db_extend[] = {	/* table for sign-extending */
 };
 
 void
-db_read_bytes(addr, size, data)
-	vm_offset_t	addr;
-	register int	size;
-	register char	*data;
+db_read_bytes(vm_offset_t addr, register int size, register char *data)
 {
 	register char	*src;
 
@@ -60,10 +57,7 @@ db_read_bytes(addr, size, data)
 }
 
 db_expr_t
-db_get_value(addr, size, is_signed)
-	db_addr_t	addr;
-	register int	size;
-	boolean_t	is_signed;
+db_get_value(db_addr_t addr, register int size, boolean_t is_signed)
 {
 	char		data[sizeof(int)];
 	register db_expr_t value;
diff --git a/minix/commands/swifi/db_disasm.c b/minix/commands/swifi/db_disasm.c
index 9d86ac3ad..fa4990ca0 100644
--- a/minix/commands/swifi/db_disasm.c
+++ b/minix/commands/swifi/db_disasm.c
@@ -866,11 +866,7 @@ static db_addr_t
  * Read address at location and return updated location.
  */
 static db_addr_t
-db_read_address(loc, short_addr, regmodrm, addrp)
-	db_addr_t	loc;
-	int		short_addr;
-	int		regmodrm;
-	struct i_addr *	addrp;		/* out */
+db_read_address(db_addr_t loc, int short_addr, int regmodrm, struct i_addr *addrp /* out */)
 {
 	int		mod, rm, sib, index, disp;
 
diff --git a/minix/commands/swifi/extra.c b/minix/commands/swifi/extra.c
index b67461b14..2416cfcd4 100644
--- a/minix/commands/swifi/extra.c
+++ b/minix/commands/swifi/extra.c
@@ -137,10 +137,7 @@ void text_write_ub(void *addr, unsigned char value)
 	}
 }
 
-void load_nlist(exe_name, btextp, etextp)
-char *exe_name;
-unsigned long *btextp;
-unsigned long *etextp;
+void load_nlist(char *exe_name, unsigned long *btextp, unsigned long *etextp)
 {
 	int i;
 	unsigned long btext, etext;
diff --git a/minix/commands/synctree/synctree.c b/minix/commands/synctree/synctree.c
index e5fff703a..1a03e460b 100644
--- a/minix/commands/synctree/synctree.c
+++ b/minix/commands/synctree/synctree.c
@@ -126,7 +126,7 @@ struct mode {
 static char *arg0;	/* basename(argv[0]) */
 static int ex= 0;	/* exit status. */
 
-static void because()
+static void because(void)
 {
 	fprintf(stderr, ": %s\n", strerror(errno));
 	ex= 1;
@@ -255,7 +255,7 @@ static void sort(struct entry **ae)
 	}
 }
 
-static void enter()
+static void enter(void)
 /* Collect directory entries of E. */
 {
 	struct entry **last= &E->con, *new;
@@ -399,7 +399,7 @@ static char *link_islink(struct stat *stp, const char *file)
 
 #define cancellink()	((void) islink())
 
-static char *islink()
+static char *islink(void)
 /* Returns the name of the file path is linked to.  If no such link can be
  * found, then path is added to the list and nil is returned.  If all the
  * links of a file have been seen, then it is removed from the list.
@@ -464,7 +464,7 @@ static int getstat(char *name, struct stat *stp)
 	return 0;
 }
 
-static int advance()
+static int advance(void)
 /* Determine next pathname, return true on success. */
 {
 	for (;;) {
@@ -517,7 +517,7 @@ static int advance()
 	return 1;
 }
 
-static enum orders request()
+static enum orders request(void)
 /* Slave reads command sent by master. */
 {
 	static char buf[64], *bp;
@@ -547,7 +547,7 @@ static enum orders request()
 	return (enum orders) req;
 }
 
-static void report()
+static void report(void)
 {
 	int r;
 
@@ -614,7 +614,7 @@ static void sendstat(struct stat *stp)
 
 static int ask();
 
-static void slave()
+static void slave(void)
 /* Carry out orders from the master, such as transmitting path names.
  * Note that the slave uses path, not Spath, the master uses Spath.
  */
@@ -763,7 +763,7 @@ static void rread(char *buf, int n)
 	}
 }
 
-static enum answers answer()
+static enum answers answer(void)
 /* Master reads slave's reply. */
 {
 	char c;
@@ -777,7 +777,7 @@ static enum answers answer()
 	return (enum answers) a;
 }
 
-static long recnum()
+static long recnum(void)
 /* Read number as pack of bytes from least to most significant.  The data
  * is on the wire in little-endian format.  (Mostly run on PC's).
  */
@@ -822,7 +822,7 @@ static void recstat(struct stat *stp)
 	stp->st_mtime= recnum();
 }
 
-static int key()
+static int key(void)
 {
 	int c;
 	static int tty= -1;
@@ -1105,7 +1105,7 @@ static int delete(int update)
 	return 1;
 }
 
-static int different()
+static int different(void)
 /* Return true iff path and Spath are different. */
 {
 	if (! ( (linkpath == nil && Slinkpath == nil)
@@ -1136,7 +1136,7 @@ static int different()
 	}
 }
 
-static void compare()
+static void compare(void)
 /* See if path and Spath are same. */
 {
 	if (different()) {
@@ -1158,7 +1158,7 @@ static void compare()
 
 static int done= 0, Sdone= 0;
 
-static enum action { ADD, COMPARE, DELETE } action()
+static enum action { ADD, COMPARE, DELETE } action(void)
 /* Look at path's of master and slave, compare them alphabetically to see
  * who is ahead of who, then tell what is to be done.
  */
@@ -1178,7 +1178,7 @@ static enum action { ADD, COMPARE, DELETE } action()
 	return (c= strcmp(Sp, p)) == 0 ? COMPARE : c < 0 ? ADD : DELETE;
 }
 
-static void master()
+static void master(void)
 /* Synchronise file tree to that of its slave. */
 {
 	enum action a= COMPARE;	/* Trick first advances. */
@@ -1244,7 +1244,7 @@ static void master()
 	order(ex == 0 ? DIE : DIE_BAD);
 }
 
-static void mediator()
+static void mediator(void)
 /* Sits at the local machine and passes orders from master to slave, both
  * on remote machines.  Only diagnostics and questions are handled.
  */
@@ -1346,7 +1346,7 @@ void splitcolon(char *path, char **amach, char **adir)
 	}
 }
 
-static void Usage()
+static void Usage(void)
 {
 	fprintf(stderr,
 	    "Usage: %s [-iuf] [[user@]machine:]dir1 [[user@]machine:]dir2\n",
diff --git a/minix/commands/term/term.c b/minix/commands/term/term.c
index b1c2c7b2a..ed3d24f56 100644
--- a/minix/commands/term/term.c
+++ b/minix/commands/term/term.c
@@ -125,9 +125,7 @@ void set_uart(int argc, char *argv[], struct termios *tcp);
 void set_raw(struct termios *tcp);
 void quit(int code);
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char *argv[])
 {
   int i;
   unsigned char key;
@@ -298,8 +296,7 @@ void tell(int fd, ...)
 }
 
 
-void reader(on)
-int on;
+void reader(int on)
 {
 /* Start or end a process that copies from the modem to the screen. */
 
@@ -390,8 +387,7 @@ void shell(char *cmd)
 }
 
 
-void lock_device(device)
-char *device;
+void lock_device(char *device)
 {
 /* Lock a device by creating a lock file using SYSV style locking. */
 
@@ -473,10 +469,7 @@ void setnum(char *s, int n)
 }
 
 
-void set_uart(argc, argv, tcp)
-int argc;
-char *argv[];
-struct termios *tcp;
+void set_uart(int argc, char *argv[], struct termios *tcp)
 {
 /* Set up the UART parameters. */
 
@@ -515,8 +508,7 @@ struct termios *tcp;
 }
 
 
-void set_raw(tcp)
-struct termios *tcp;
+void set_raw(struct termios *tcp)
 {
   /* Set termios attributes for RAW mode. */
 
@@ -528,8 +520,7 @@ struct termios *tcp;
 }
 
 
-void quit(code)
-int code;
+void quit(int code)
 {
 /* Stop the reader process, reset the terminal, and exit. */
   reader(0);
diff --git a/minix/commands/termcap/termcap.c b/minix/commands/termcap/termcap.c
index 8873260e4..f0aaf471f 100644
--- a/minix/commands/termcap/termcap.c
+++ b/minix/commands/termcap/termcap.c
@@ -20,9 +20,7 @@ int main(int argc, char **argv);
 void Print(char *comment, char *name);
 void Error(char *message, char *arg);
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char **argv)
 
   {
   char *term;
@@ -154,9 +152,7 @@ void Print( comment, name )
 /****************************************************************/
 
 
-void Error( message, arg )
-  char *message;
-  char *arg;
+void Error( char *message, char *arg )
 
   {
   fprintf( stderr, message, arg );
diff --git a/minix/commands/umount/umount.c b/minix/commands/umount/umount.c
index 411a9da5b..7b6a836f8 100644
--- a/minix/commands/umount/umount.c
+++ b/minix/commands/umount/umount.c
@@ -22,9 +22,7 @@ void usage(void);
 static char device[PATH_MAX], mount_point[PATH_MAX], type[MNTNAMELEN],
 		flags[MNTFLAGLEN];
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char *argv[])
 {
   int found;
   int umount_flags = 0UL;
@@ -62,8 +60,7 @@ char *argv[];
   return(0);
 }
 
-int find_mtab_entry(name)
-char *name;
+int find_mtab_entry(char *name)
 {
 /* Find a matching mtab entry for 'name' which may be a special or a path,
  * and generate a new mtab file without this entry on the fly. Do not write
@@ -97,7 +94,7 @@ char *name;
   return found;
 }
 
-void usage()
+void usage(void)
 {
   std_err("Usage: umount [-e] name\n");
   exit(1);
diff --git a/minix/commands/update/update.c b/minix/commands/update/update.c
index 2c1d8783c..209f91680 100644
--- a/minix/commands/update/update.c
+++ b/minix/commands/update/update.c
@@ -6,7 +6,7 @@
 
 int main(void);
 
-int main()
+int main(void)
 {
   /* Release all (?) open file descriptors. */
   close(0);
diff --git a/minix/commands/vol/vol.c b/minix/commands/vol/vol.c
index 7036a77c2..08b3447b9 100644
--- a/minix/commands/vol/vol.c
+++ b/minix/commands/vol/vol.c
@@ -58,9 +58,7 @@ void tape_inquire(char *name, int fd);
 void allocate_buffer(void);
 void diskio(int fd1, int fd2, char *file1, char *file2);
 
-int main(argc, argv)
-int argc;
-char *argv[];
+int main(int argc, char *argv[])
 {
   int volume = 1, fd, tty, i, init, autovolsize;
   char *p, *name;
@@ -208,18 +206,14 @@ char *argv[];
   }
 }
 
-void usage()
+void usage(void)
 {
   fprintf(stderr,
 	"Usage: vol [-rw1] [-b blocksize] [-m max] [size] block-special\n");
   exit(1);
 }
 
-long str2size(name, str, min, max, assume_kb)
-char *name;
-char *str;
-long min, max;
-int assume_kb;
+long str2size(char *name, char *str, long min, long max, int assume_kb)
 {
   /* Convert a string to a size.  The number may be followed by 'm', 'k', 'b'
    * or 'w' to multiply the size as shown below.  If 'assume_kb' is set then
@@ -259,9 +253,7 @@ int assume_kb;
   return size;
 }
 
-void tape_inquire(name, fd)
-char *name;
-int fd;
+void tape_inquire(char *name, int fd)
 {
   /* If the device happens to be a tape, then what is its block size? */
   struct mtget mtget;
@@ -288,7 +280,7 @@ int fd;
   }
 }
 
-void allocate_buffer()
+void allocate_buffer(void)
 {
   /* Set block size and maximum multiple. */
   if (block_size == 0) block_size = variable ? 1 : FIX_BLKSIZ;
@@ -313,9 +305,7 @@ void allocate_buffer()
   }
 }
 
-void diskio(fd1, fd2, file1, file2)
-int fd1, fd2;
-char *file1, *file2;
+void diskio(int fd1, int fd2, char *file1, char *file2)
 {
 /* Read 'volume_size' bytes from 'fd1' and write them on 'fd2'.  Watch out for
  * the fact that reads on pipes can return less than the desired data.
diff --git a/minix/commands/zmodem/rbsb.c b/minix/commands/zmodem/rbsb.c
index c8f6fbcd0..810016ba3 100644
--- a/minix/commands/zmodem/rbsb.c
+++ b/minix/commands/zmodem/rbsb.c
@@ -62,7 +62,7 @@ Howmany must be 255 or less
  */
 int Fromcu;		/* Were called from cu or yam */
 
-void from_cu()
+void from_cu(void)
 {
 	struct stat a, b;
 
@@ -71,7 +71,7 @@ void from_cu()
 	return;
 }
 
-void cucheck()
+void cucheck(void)
 {
 	if (Fromcu)
 		fprintf(stderr,"Please read the manual page BUGS chapter!\r\n");
@@ -123,7 +123,7 @@ char checked = '\0' ;
 /*
  * Nonblocking I/O is a bit different in System V, Release 2
  */
-int rdchk(f)
+int rdchk(int f)
 {
 	int lf, savestat;
 
@@ -170,8 +170,7 @@ int iofd = 0;		/* File descriptor for ioctls & reads */
  *  1: save old tty stat, set raw mode 
  *  0: restore original tty mode
  */
-int mode(n)
-int n;
+int mode(int n)
 {
 	static int did0 = FALSE;
 
@@ -397,7 +396,7 @@ int n;
 	}
 }
 
-void sendbrk()
+void sendbrk(void)
 {
 #ifdef POSIX
 	tcsendbreak(iofd, 1);
diff --git a/minix/commands/zmodem/rz.c b/minix/commands/zmodem/rz.c
index 946be48fb..a04582177 100644
--- a/minix/commands/zmodem/rz.c
+++ b/minix/commands/zmodem/rz.c
@@ -178,7 +178,7 @@ FILE *fout;
  * Routine to calculate the free bytes on the current file system
  *  ~0 means many free bytes (unknown)
  */
-long getfree()
+long getfree(void)
 {
 	return(~0L);	/* many free bytes ... */
 }
@@ -240,8 +240,7 @@ jmp_buf tohere;		/* For the interrupt on RX timeout */
 
 int tryzhdrtype=ZRINIT;	/* Header type to send corresponding to Last rx close */
 
-void alrm(sig)
-int sig;
+void alrm(int sig)
 {
 	longjmp(tohere, -1);
 }
@@ -373,7 +372,7 @@ int main(int argc, char *argv[])
 }
 
 
-int usage()
+int usage(void)
 {
 	cucheck();
 #ifdef vax11c
@@ -513,7 +512,7 @@ et_tu:
  * Jack M. Wierda and Roderick W. Hart
  */
 
-int wcrx()
+int wcrx(void)
 {
 	register int sectnum, sectcurr;
 	register char sendchar;
@@ -711,7 +710,7 @@ int readline(int timeout)
 /*
  * Purge the modem input queue of all characters
  */
-void purgeline()
+void purgeline(void)
 {
 	Lleft = 0;
 #ifdef USG
@@ -1032,7 +1031,7 @@ void zperr(char *s, char *p, char *u)
 }
 
 /* send cancel string to get the other end to shut up */
-void canit()
+void canit(void)
 {
 	static char canistr[] = {
 	 24,24,24,24,24,24,24,24,24,24,8,8,8,8,8,8,8,8,8,8,0
@@ -1113,7 +1112,7 @@ void checkpath(char *name)
  *  Return ZFILE if Zmodem filename received, -1 on error,
  *   ZCOMPL if transaction finished,  else 0
  */
-int tryz()
+int tryz(void)
 {
 	register int c, n;
 	register int cmdzack1flg;
@@ -1209,7 +1208,7 @@ again:
 /*
  * Receive 1 or more files with ZMODEM protocol
  */
-int rzfiles()
+int rzfiles(void)
 {
 	register int c;
 
@@ -1238,7 +1237,7 @@ int rzfiles()
  * Receive a file with ZMODEM protocol
  *  Assumes file name frame is in secbuf
  */
-int rzfile()
+int rzfile(void)
 {
 	register int c, n;
 	long rxbytes;
@@ -1437,7 +1436,7 @@ void zmputs(char *s)
 /*
  * Close the receive dataset, return OK or ERROR
  */
-int closeit()
+int closeit(void)
 {
 	time_t q;
 
@@ -1468,7 +1467,7 @@ int closeit()
 /*
  * Ack a ZFIN packet, let byegones be byegones
  */
-void ackbibi()
+void ackbibi(void)
 {
 	register int n;
 
diff --git a/minix/commands/zmodem/sz.c b/minix/commands/zmodem/sz.c
index cc256d6f1..9edc03745 100644
--- a/minix/commands/zmodem/sz.c
+++ b/minix/commands/zmodem/sz.c
@@ -652,7 +652,7 @@ int wctxpn(char *name)
 	return OK;
 }
 
-int getnak()
+int getnak(void)
 {
 	register int firstch;
 
@@ -850,7 +850,7 @@ int filbuf(char *buf, int count)
 }
 
 /* Fill buffer with blklen chars */
-int zfilbuf()
+int zfilbuf(void)
 {
 	int n;
 
@@ -984,13 +984,13 @@ int readline(int timeout)
 	return (byt[0]&0377);
 }
 
-void flushmo()
+void flushmo(void)
 {
 	fflush(stdout);
 }
 
 
-void purgeline()
+void purgeline(void)
 {
 #ifdef USG
 	ioctl(iofd, TCFLSH, 0);
@@ -1001,7 +1001,7 @@ void purgeline()
 #endif
 
 /* send cancel string to get the other end to shut up */
-void canit()
+void canit(void)
 {
 	static char canistr[] = {
 	 24,24,24,24,24,24,24,24,24,24,8,8,8,8,8,8,8,8,8,8,0
@@ -1099,7 +1099,7 @@ char *babble[] = {
 	""
 };
 
-int usage()
+int usage(void)
 {
 	char **pp;
 
@@ -1115,7 +1115,7 @@ int usage()
 /*
  * Get the receiver's init parameters
  */
-int getzrxinit()
+int getzrxinit(void)
 {
 	register int n;
 	struct stat f;
@@ -1220,7 +1220,7 @@ int getzrxinit()
 }
 
 /* Send send-init information */
-int sendzsinit()
+int sendzsinit(void)
 {
 	register int c;
 
@@ -1308,7 +1308,7 @@ again:
 }
 
 /* Send the data in the file */
-int zsendfdata()
+int zsendfdata(void)
 {
 	register int c, e, n;
 	register int newcnt;
@@ -1564,7 +1564,7 @@ int getinsync(int flag)
 
 
 /* Say "bibi" to the receiver, try to do it cleanly */
-void saybibi()
+void saybibi(void)
 {
 	for (;;) {
 		stohdr(0L);		/* CAF Was zsbhdr - minor change */